Navigation Links
How bacteria integrate autotransporters into their outer membrane
Date:9/23/2013

s PhD fellowship, "also forms a barrel with a pore. The pore is closed to the outside by a lid but a particular kink in the barrel wall provides a gate for autotransporter substrates." When an unfolded autotransporter is delivered, TamA hooks onto one end of the substrate polypeptide chain and integrates it step by step via the gate into its own barrel structure. The TamA barrel is thus expanded; the pore widens and opens such that passenger substrates traverse to the exterior. The assembly process ends when TamA releases the autotransporter into the surrounding membrane. "The autotransporter insertion mechanism was previously completely enigmatic for the first time, knowing the structure of TamA, we can now picture how assembly and translocation could function."

Assembly process important for infections

Many pathogens, such as the diarrhea causing Yersinia, Salmonella or the Cholera pathogen, belong to the group of Gram-negative bacteria. With the help of the autotransporter, they release toxins or adhesive proteins to infect their host cells. In their study, Maier and Hiller provide completely new findings about membrane insertion of autotransporters as well as the translocation of their cargo.


'/>"/>

Contact: Olivia Poisson
olivia.poisson@unibas.ch
University of Basel
Source:Eurekalert

Page: 1 2

Related biology news :

1. Leading evolutionary scientist to discuss how genome of bacteria has evolved
2. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
3. Team discovers how bacteria resist a Trojan horse antibiotic
4. From scourge to saint: E. coli bacteria becomes a factory - to make cheaper, faster pharmaceuticals
5. Bacterial shock to recapture essential phosphate
6. Disarming disease-causing bacteria
7. Study shows unified process of evolution in bacteria and sexual eukaryotes
8. Invisible helpers: How probiotic bacteria protect against inflammatory bowel diseases
9. Researchers develop rapid test strips for bacterial contamination in swimming water
10. Bacteria discovery could lead to antibiotics alternatives
11. Agricultural bacteria: Blowing in the wind
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/18/2014)... 2014 The Parenteral Drug Association (PDA) today confirmed ... speak and at least seven more will participate in the ... Shoreham Hotel in Washington D.C. , Dec. ... significant support from the regulatory agencies in the ... in our effort to help advance the use of metrics ...
(Date:11/12/2014)... PALM BEACH GARDENS, Fla. , Nov. 12, 2014 ... management solutions, announced today that its U.are.U ® ... upscale retail bakery chain in Central Mexico ... solution in June 2014 to eliminate payroll issues caused ... Prior to installing the U.are.U fingerprint readers, Montparnasse ...
(Date:11/7/2014)... Researchers led by Dr. Debra Auguste, associate professor, ... at The City College of New York, have ... treatment for one of the most aggressive forms ... (TNBCs) have a high mortality rate owing to ... effective therapeutic options. However, Professor Auguste,s team, discovered ...
Breaking Biology News(10 mins):FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... weight-loss diets, dietary proteins have proven effectiveness thanks to ... Director of Inserm,s Unit 855 "Nutrition and the Brain" ... behind these properties. The researchers describe in detail the ... message to the brain long after a meal. Their ...
... A landmark conference has agreed key priorities for ... to understand better the workings of life on Earth, ... lives and livelihoods. The Global Biodiversity Informatics Conference ... from 2-4 July, identified critical areas in which greater ...
... , HZB scientists have apply a new method -- ... will enable them to probe the electronic structure of ... in vacuum conditions at the LiXEdrom experimental chamber, where ... through vacuum and is continuously irradiated with X-ray radiation. ...
Cached Biology News:The 'appetite-suppressing' effect of proteins explained 2Building global collaboration for biodiversity intelligence 2Building global collaboration for biodiversity intelligence 3Aqueous iron interacts as strong as solid iron 2
(Date:11/26/2014)... and PHILADELPHIA , Nov. 26, 2014 ... and unforgiving environments. Human exploration of space requires astronauts ... ensure mission safety and success, and prevent potential errors ... mission success, little is known about how cognition is ... are primarily affected. Now, Penn Medicine researchers ...
(Date:11/26/2014)... 2014 On January, 14, 2015, ... Washington D.C. science community to the UMBC campus for ... by the Protein Society, will take place from 9 ... 312. Through discussion, presentations and workshops, the free ... proteins, their role in the industry and the future ...
(Date:11/26/2014)... PMG Research, Inc. announced today ... a network of sites that provide clinical research services to ... patient lives through its partnerships with large physician practices and ... site locations in the Southeastern United States and spans over ... board will be held by: Dr. Robert Holmes, ...
(Date:11/26/2014)... SonaCare Medical, a leading manufacturer of ... participated in the American Urology Association’s (AUA) surgical ... opinion leaders in urology presented on the latest ... masses while attendees had the opportunity to evaluate ... labs. Attendees at the Los Angeles, CA lab, ...
Breaking Biology Technology:Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 2Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 3Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 4PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 2SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 3
... ... sectors suffer, savvy investors like Prudential target healthcare , ... Minneapolis (Vocus) – Even as other commercial real ... healthcare real estate. Recent deals have included $250 million in new debt and $30 ...
... , BETHESDA, Md., July 30 Micromet, Inc. ... proprietary antibodies for the treatment of cancer, inflammation and autoimmune ... 14,000,000 shares of its common stock at a public offering ... are being offered by Micromet. The gross proceeds to ...
... , , , ... CRTX ), a specialty pharmaceutical company focused ... the respiratory and related markets, today announced that it ... a leading European pharmaceutical company headquartered in Parma, Italy. ...
Cached Biology Technology:Millions Flowing into Medical Real Estate 2Millions Flowing into Medical Real Estate 3Micromet Announces Pricing of Public Offering of Common Stock 2Micromet Announces Pricing of Public Offering of Common Stock 3Micromet Announces Pricing of Public Offering of Common Stock 4Cornerstone Therapeutics Announces Closing of Chiesi Transaction 2Cornerstone Therapeutics Announces Closing of Chiesi Transaction 3Cornerstone Therapeutics Announces Closing of Chiesi Transaction 4Cornerstone Therapeutics Announces Closing of Chiesi Transaction 5Cornerstone Therapeutics Announces Closing of Chiesi Transaction 6